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katovenus [111]
2 years ago
13

Find d:

Mathematics
1 answer:
BlackZzzverrR [31]2 years ago
6 0

Answer:

D = 51, other = 30

Step-by-step explanation:

d = | 5  1 |

     |-1  10|

D = (5 x 10) - ( 1 x -1) = 50 + 1 = 51

| 2   4|

|-3   9|

(2 x 9) - (4 x -3) = 18 + 12 = 30

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melisa1 [442]

The <em><u>correct answer</u></em> is:

$43.20

Explanation:

The formula we have is

c = p(1+r), where c is the total cost, p is the price of the item before tax, and r is the tax rate written as a decimal.  This formula comes from the fact that adding a percent tax to the cost of an item takes 100% of the price and adds r% to it; this is why we multiply the price by (1+r).

Since our tax rate is 8%, r = 8% = 8/100 = 0.08.  The price of the item is $40.  Using this information, we have:

c = 40(1.08) = $43.20

3 0
3 years ago
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vaieri [72.5K]

Answer:

see explanation

Step-by-step explanation:

put a point to the right of -1 (-0.9)

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6 0
3 years ago
Can you help me with this question.
HACTEHA [7]

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write a system of linear equations in which (3,-5) is a solution of equation 1 but not a solution of equation 2 and (-1,7) is a
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Answer:

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Step-by-step explanation:

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shepuryov [24]

Answer:

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